Wide-Range Air-Fuel Ratio Sensor, 1989 Hitachi, Limited

Format:

Conference/Event

Author/Creator:

Tanaka, Tanaka, author.

Contributor:

Harada, Takeshi

Ichikawa, Norio

Kanamaru, Masatoshi

Miki, Masayuki

Nishimura, Shigeoki

Suzuki, Seikoo

Ueno, Sadayasu

Conference Name:

SAE International Congress & Exposition (1989-02-27 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1989

Summary:

The detection range of an air-fuel ratio sensor is expanded in the rich A/F region. Using a simulation technique, the limiting cause of the detection range in the rich A/F region is identified as insufficient combustion rates of CO and H2 with O2 on the electrode, which prevent realization of a limited diffusion state which is necessary to detect the air-fuel ratio. Applying an improved diffusion layer to decrease the diffusion rates and an improved electrode to increase the combustion rates, it is demonstrated that the detection limit can be expanded to λ=0.6 while that of a conventional sensor is λ=0.8.

Notes:

Vendor supplied data

Publisher Number:

890299

Access Restriction:

Restricted for use by site license